CVE-2019-9772 : Vulnerability Insights and Analysis

A problem has been identified in versions 0.7 and 0.7.1645 of GNU LibreDWG. This issue involves a null pointer dereference occurring within the dwg_dxf_LEADER function located in dwg.spec.

Understanding CVE-2019-9772

An issue was discovered in GNU LibreDWG 0.7 and 0.7.1645. There is a NULL pointer dereference in the function dwg_dxf_LEADER at dwg.spec.

What is CVE-2019-9772?

CVE-2019-9772 is a vulnerability found in GNU LibreDWG versions 0.7 and 0.7.1645, leading to a null pointer dereference in the dwg_dxf_LEADER function.

The Impact of CVE-2019-9772

This vulnerability could be exploited by an attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2019-9772

Vulnerability Description

The issue involves a null pointer dereference in the dwg_dxf_LEADER function within dwg.spec in GNU LibreDWG versions 0.7 and 0.7.1645.

Affected Systems and Versions

Product: GNU LibreDWG
Versions: 0.7, 0.7.1645

Exploitation Mechanism

The vulnerability can be exploited by an attacker to trigger a null pointer dereference, potentially leading to a DoS condition or arbitrary code execution.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches provided by the vendor.
Consider implementing appropriate input validation mechanisms.
Monitor vendor advisories and security mailing lists for updates.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Conduct security assessments and code reviews to identify and address vulnerabilities.

Patching and Updates

Ensure that all systems running GNU LibreDWG are updated with the latest patches to mitigate the CVE-2019-9772 vulnerability.